Chords for 뚜두뚜두 - DDU-DU DDU-DU (BLACKPINK - 블랙핑크) _ Fingerstyle guitar arranged & cover by Sean Song (). Spark is the smartest and most interesting app to learn and enjoy playing guitar. Spark is an all-around app for beginners and advanced players to learn any song with chords or master new skills with hundreds of lessons and games in Spark.